Just purchased KW Clubsport 2-way and would like to get some input on what alignment specs (camber and toe) I should be running. I'm doing about 8-10 track days this year but would like something little conservative since I do take the car out sometimes on a nice evening. The car is also driven to the track on re71rs 275/35/18 on a 18x10 et25 apex sm10.

OP - I would recommend swapping a shorter main spring in the front for better wheel clearance. Eibach 140mm length, 60mm diameter in the spring rate that came with your version of CS (it's stamped on your KW spring). If not you will need a front spacer. Plus you can fit wider 10.5" wheels in the future. Doing the swap now will save you the labor of pulling the suspension out to do it later.

So, the 1/4" rake is measured from the difference between the front and rear jack point. This is Bimmerworlds suggested method for measuring rake on the E9X chassis.

With that being said the front and rear ground to fender measurements for our car are as follows:
Front: 635mm
Rear: 599mm

Ground to fender are somewhat misleading, as these will change depending on the diameter of tire you are running. The above numbers are with the car running 275/35R18 all around. If for example you were running 275/40R18, these ride height numbers would be higher, but rake would still remain the same. Thus, centre of wheel to fender is a better method as it ignores differences in overall tire diameter.

Hope that helps.

Last edited by tsk94; 06-29-2019 at 12:40 PM..
Reason: Mixed up front and rear numbers..

So, the 1/4" rake is measured from the difference between the front and rear jack point. This is Bimmerworlds suggested method for measuring rake on the E9X chassis.

With that being said the front and rear ground to fender measurements for our car are as follows:
Front: 635mm
Rear: 599mm

Ground to fender are somewhat misleading, as these will change depending on the diameter of tire you are running. The above numbers are with the car running 275/35R18 all around. If for example you were running 275/40R18, these ride height numbers would be higher, but rake would still remain the same. Thus, centre of wheel to fender is a better method as it ignores differences in overall tire diameter.

Hope that helps.

Yes I understand FTG is relative to tire size. I run the same size as you, but have 635mm F and 635mm R

That rear ride height of 599mm must tuck the rear tires in the arches a lot? I thought my car was low

Yes I understand FTG is relative to tire size. I run the same size as you, but have 635mm F and 635mm R

That rear ride height of 599mm must tuck the rear tires in the arches a lot? I thought my car was low

It's tucked up a bit for sure, but I wouldn't say it's that low. Some of the E92 GT4 factory race cars are even lower than this by ~10-15mm. At first the rear ride height was setup quite a bit higher, but resulted in a lot of rear end instability/oversteer at turn in and mid corner. Lowering the rear to where it is now has massively improved this.

My main point was not to over look the importance of proper ride height settings for track use, they are just as important as the rest of the alignment.

Also interested to see you guys are able to achieve -3 or more camber, my plates are maxed out on one side and the other has maybe a hairs worth, but am only at -2.7

Depends what plates you are running. When I ran Ground Control street plates, my max was just about what you are seeing. I'm running Vorschlag now with aftermarket suspension and can get a bit over 4 degrees negative on both sides (which is too much for street tires). I run -3.5 degrees on track with street tires.

Depends what plates you are running. When I ran Ground Control street plates, my max was just about what you are seeing. I'm running Vorschlag now with aftermarket suspension and can get a bit over 4 degrees negative on both sides (which is too much for street tires). I run -3.5 degrees on track with street tires.

Right, I was looking at aftermarket camber plates to get more camber - was hoping the kw clubsport camber plates could pull more